Details
Description
SeSennheiser HD 660S2 Open Back Headphones
The HD 660S2 is the newest version of Sennheiser's legendary "HD 600" series. They feature the same iconic design as their predecessors but with some noticeable sonic tweaks, in particular to enhance the lower bass frequencies with the 660S2’s now dropping down to 70Hz.
Musical Precision
Like their predecessors, the HD 660S2 headphones are crafted for the discerning listener. Each speaker is hand-selected and meticulously paired to ensure consistent sound quality across both channels. The precision-engineered stainless-steel diaphragms deliver an incredibly realistic, true-to-life audio experience.
Open-Back Design for Expansive Sound
With an open-back design, the HD 660S2 headphones provide a wide, more natural, airy sound, getting you as close to a live performance as possible.
Balanced Input Capability
Equipped with both balanced and unbalanced cables, the HD 660S2 optimizes the performance of high-quality headphone amplifiers and audio players with balanced outputs. Balanced cables reduce interference, preserving the purity of the sound. The standard cable features a 6.35mm plug, with a 3.5mm adapter included for convenience.
Built for Comfort
When audio quality is this exceptional, extended listening sessions are inevitable. The HD 660S2 ensures lasting comfort with its ergonomic, elliptical ear cups that naturally conform to your ears. The breathable, soft earpads enhance comfort without becoming sticky or uncomfortable during long use.
Specifications
Specifications
Ear coupling |
Around-the-ear |
Transducer principle |
dynamic, open |
Transducer size |
38 mm |
Cable length |
1.8m |
Connector |
6.3 mm (1⁄4inch) jack plug, 4.4 mm balanced plug, 6.35 mm to 3.5 mm adapter |
Frequency response |
8 Hz – 41500 Hz |
Nominal impedance |
300 Ohm () |
Sound pressure level (SPL) |
104 dB / 1 V RMS |
THD, total harmonic distortion |
<0,04 % (1kHz/100 db SPL) |
Package weight |
260 g |
Warranty |
2 years |
Delivery & Returns
Delivery & Returns
We offer free next day delivery on all orders over £99. For orders under £99 a delivery charge of £7.50 will be applied.
Cut-off time for next day delivery is 3pm Monday-Friday. Items ordered after 3pm on Friday will be shipped on Saturday for Monday delivery. Orders placed after 1pm on Saturday or on Sunday will be despatched on Monday for Tuesday delivery. (please allow an extra day if a bank holiday falls within this period).
Our delivery partner DPD offers an interactive messaging service and will provide a 1-hour time window for your delivery so please provide a mobile phone number where possible.
Some items are not available on a next day delivery service, in these cases the selected product page will display the expected delivery time. If you would like to double check the delivery time prior to ordering please call 01932 851121 or email sales@weybridge-audio.co.uk.
* Remote and offshore locations are excluded from the free delivery service. For these locations we offer a standard 2-3 day delivery
service at £16 per item.
For more detailed info please see delivery information
Cancellations & Returns
At Weybridge Audio we want our customers to be happy with their purchase which is why we offer a 30-day no-hassle return policy on all products purchased through our website. If you would like to return an item please call us on 01932 851121 or email to sales@weybridge-audio.co.uk including your name, address, and original order number. The cost of returning an item is the responsibility of the customer unless the item is faulty in which case we will arrange to collect the faulty item at our expense.
Items must be returned to us in 'as new' condition, complete with all original packaging and accessories. Refunds will be processed within 5 days of receiving the item, subject to the above terms being met.
For more information please see our terms & conditions.